Cognitive benefits of music in aerobic exercise: Evidence from a Bayesian network meta-analysis in adults with mild cognitive impairment.

Aerobic exercise improves cognitive functions in older adults with mild cognitive impairment (MCI), while dance, combining music and synchronized movement, offers additional cognitive benefits. Despite music's potential role in enhancing cognitive outcomes, most research on aerobic exercise has not considered the impact of accompanying music. This review compared the effectiveness of aerobic exercise with music, aerobic exercise without music, and dance on cognitive function in adults with MCI. A total of 38 papers from 25 randomized controlled trials (N = 2048) were synthesized. The multilevel meta-analyses showed that compared to the control group, global cognition was improved by aerobic exercise with music (g = 1.2 [0.47, 1.94]), aerobic exercise without music (g = 0.48 [0.18, 0.79]), and dance (g = 0.55 [0.13, 0.96]). Dance also enhanced short-term memory (g = 0.41 [0.24, 0.59]), learning efficiency (g = 0.39 [0.14, 0.65]), and retrieval fluency (g = 0.7 [0.19, 1.22]). Bayesian network meta-analyses indicated that aerobic exercise with music had the highest probability of being the most effective for improving global cognition, executive function, and processing speed. Dance was likely to be the most beneficial for enhancing short-term memory, learning efficiency, and retrieval fluency. This study supports that incorporating music in exercise amplifies the cognitive benefits beyond exercise alone for individuals with MCI. The "Music Exercise Synergy Model" is proposed to explain the cognitive benefits of combining music with exercise. Dance strategically uses music for coordination, offering psychological, social, cognitive, and neurobiological benefits and contributing to the observed enhancements in memory functions.